Radion stabilization in compact hyperbolic extra dimensions

Salah Nasri, Pedro J. Silva, Glenn D. Starkman, Mark Trodden

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)


We consider radion stabilization in hyperbolic brane-world scenarios. We demonstrate that in the context of Einstein gravity, matter fields which stabilize the extra dimensions must violate the null energy condition. This result is shown to hold even allowing for Friedmann-Robertson-Walker-like expansion on the brane. In particular, we explicitly demonstrate how one putative source of stabilizing matter fails to work, and how others violate the above condition. We speculate on a number of ways in which we may bypass this result, including the effect of Casimir energy in these spaces. A brief discussion of supersymmetry in these backgrounds is also given.

Original languageEnglish
Article number045029
JournalPhysical Review D
Issue number4
Publication statusPublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Radion stabilization in compact hyperbolic extra dimensions'. Together they form a unique fingerprint.

Cite this